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Software Engineer, SFS Bank Platform

Cash App

$153,000 - $270,000
Dec 2, 2025
New York, NY, US
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Block's SFS Bank Platform team needs to build a better bank by designing and building new features into their banking platform, partnering with engineering teams across Block to onboard their products to SFS, building systems that operate on sensitive customer data with high security and compliance standards, designing fault-tolerant systems, and ensuring the continued operation of critical services.

Requirements

  • Hands-on skills building software products or services in the cloud (AWS, Azure, GCP, etc.)
  • A track record of building software that is easy to observe and operate
  • Proficiency building products and services using AWS
  • Proficiency with Kotlin
  • Experience building public APIs
  • Experience building tools for finance operations
  • Kotlin/Java, Go, TypeScript, React, PhantomJS, Temporal.io, Kubernetes, AWS Fargate + ECS, AWS Aurora and DynamoDB, Swagger, Protocol Buffers, gRPC, REST, Unit Tests, Continuous Integration

Responsibilities

  • Design and build new features into our banking platform that meet the diverse needs of Block's broad portfolio of products and services
  • Partner with engineering teams across Block to help onboard their products to SFS
  • Build systems that operate on our customers' most sensitive data, while holding Square to the highest standards for security and compliance.
  • Design fault tolerant systems so the team can be brave and move fast, without ever negatively affecting our customers.
  • Ensure the continued operation of our critical services, remediate any problems that occur, and design durable fixes so that they don't happen again

Other

  • 5 or more years of relevant experience
  • A strong sense of customer empathy and a drive to ship software that improves their lives
  • Excellent written and verbal communication skills.
  • This is a remote-forward team.
  • Bachelor's Degree